General Topics & Mole Concept
Quick practice
Question 1 of 5
Which of the following statements is correct?
A
The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.
B
There is an exchange of energy as well as matter between the system and the surroundings in a closed system.
C
The presence of reactants in a closed vessel made up of copper is an example of a closed system.
D
The presence of reacting species in a covered beaker is an example of open system.
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